HR30228NSKTapered Roller

Name: NSK HR30228 Tapered Roller Bearing
Brand: NSK
SKU: HR30228

HR30228 is a NSK tapered roller bearing, bore 140 mm, O.D. 250 mm, width 42 mm, dynamic rating 480 kN. Dimensions, drawing, interchanges and price.

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Bore d140mm

Outside dia. D250mm

Width B42mm

Dynamic Cr480kN

Static C0r515kN

Limiting speed1,400rpm

Weight8.74kg

Cr / C0r0.93

Mean dia. dm195mm

Original catalogue drawing - NSK E1103, page 268

HR30228 NSK Tapered Roller bearing catalogue drawing

Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.

Scale cross-section

Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.

Dimension table (mm / inch)

Symbol	Dimension	mm	inch
d	Bore diameter	140	5.5118
D	Outside diameter	250	9.8425
B	Inner-ring / bearing width	42	1.6535
T	Overall assembly width	45.75	1.8012
C	Cup / outer-ring width	36	1.4173
r	Chamfer (min)	3	0.1181

Notes

Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.

Main dimensions

Bore d (mm)	140
Outside dia. D (mm)	250
Width B (mm)	42
Overall width T (mm)	45.75
Cup width C (mm)	36

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	107908
Basic static load rating Cor (lbs)	115777
Basic dynamic load rating Cr (N)	480000
Basic static load rating C0r (N)	515000
Limiting speed - grease (rpm)	1,400
Effective load centre a (mm)	4

Weight

Weight (kg)	8.74

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	3

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 400 rpm
4	120,000	102	4,233
6	80,000	392	16,354
8	60,000	1,024	42,667
10	48,000	2,154	89,768
15	32,000	8,323	346,811

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 480,000 N. Hours = L₁₀ x 10⁶ / (60n). Life-modification factors for lubrication, contamination and temperature (a_ISO) are not included.

Source & traceability

Brand	NSK
Source catalogue	NSK CAT. No. E1103 (metric)
Catalogue page	p.268 (dimensions)

Load ratings in newtons, weights in kg, limiting speeds for grease and oil lubrication.

Interchange - same dimensions, other brands

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6228	FAG	Ball	140	250	42	188 kN	8.07
QJ228-N2-MPA	FAG	Ball	140	250	42	315 kN	9.69
N228-E-M1	FAG	Cylindrical Roller	140	250	42	460 kN	9.3
N228-E-XL-M1	FAG	Cylindrical Roller	140	250	42	460 kN	9.3
NJ228-E-M1	FAG	Cylindrical Roller	140	250	42	460 kN	9.46
NJ228-E-XL-M1	FAG	Cylindrical Roller	140	250	42	460 kN	9.46
NU228-E-M1	FAG	Cylindrical Roller	140	250	42	460 kN	9.31
NU228-E-XL-M1	FAG	Cylindrical Roller	140	250	42	460 kN	9.31
NUP228-E-M1	FAG	Cylindrical Roller	140	250	42	460 kN	9.61
NUP228-E-XL-M1	FAG	Cylindrical Roller	140	250	42	460 kN	9.61

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6228	NSK	Ball	140	250	42	37,400 lbs	8.89
7228B	NSK	Ball	140	250	42	44,300 lbs	8.8
228	NSK	Cylindrical Roller	140	250	42	67,100 lbs	8.165
NU228E	NSK	Cylindrical Roller	140	250	42	485 kN	9.38
HR30228J	NSK	Tapered Roller	140	250	42	87,700 lbs	8.741
7228	NSK	Precision / Angular Contact	140	250	42	240 kN	8.92
7228A5	NSK	Precision / Angular Contact	140	250	42	50,900 lbs	7.911
7228C	NSK	Precision / Angular Contact	140	250	42	53,600 lbs	7.843

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30328	NSK	Tapered Roller	140	300	62	135,000 lbs	20.103
32328	NSK	Tapered Roller	140	300	102	221,000 lbs	33.906
HR30228J	NSK	Tapered Roller	140	250	42	87,700 lbs	8.741
HR30328	NSK	Tapered Roller	140	300	62	910 kN	21.1
HR31328	NSK	Tapered Roller	140	300	70	855 kN	23.1
HR31328J	NSK	Tapered Roller	140	300	62	124,800 lbs	23.224
HR32028	NSK	Tapered Roller	140	210	45	400 kN	5.32
HR32028XJ	NSK	Tapered Roller	140	210	45	325,000 lbs	5.321

Request a quotation for HR30228

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